package 蓝桥算法;

public class day04 {
    public static void main(String[] args) {
        Node2 a=new Node2();
        a.addFirst(1);
        a.addFirst(2);
        a.addFirst(3);
        a.addFirst(4);
       /* a.loop1();*/
      /*  a.reserveList(a.head);
        a.loop1();*/
      /*  a.reserveList1(a.head);
        a.loop1();*/
    }
}
